EP1238698A1 - Static mixer - Google Patents

Static mixer Download PDF

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Publication number
EP1238698A1
EP1238698A1 EP02000849A EP02000849A EP1238698A1 EP 1238698 A1 EP1238698 A1 EP 1238698A1 EP 02000849 A EP02000849 A EP 02000849A EP 02000849 A EP02000849 A EP 02000849A EP 1238698 A1 EP1238698 A1 EP 1238698A1
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EP
European Patent Office
Prior art keywords
static mixer
mixing
mixing elements
pitch
mixer according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02000849A
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German (de)
French (fr)
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EP1238698B1 (en
Inventor
Amir Assadi
Jürgen Grün
Jakob Rainer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fischerwerke Artur Fischer GmbH and Co KG
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Fischerwerke Artur Fischer GmbH and Co KG
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Publication of EP1238698A1 publication Critical patent/EP1238698A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held

Definitions

  • the invention relates to a static mixer for mixing several, in particular pasty material components, with the features of the preamble of claim 1.
  • the static mixer is one for mixing a hardener and a binder Resin mortar provided. In principle, more than two can be used Material components are mixed. The material components are made, for example a cartridge and pressed through the static mixer.
  • Static mixers of this type are known per se. They have a tube as a housing that forms a passageway. In the tube or passage channel are helical Mixing elements arranged one behind the other. The mixing elements can also be used as Axial sections of a single, continuous mixing element can be understood. There are passages to the inside of the mixing elements and / or between them Merging strands of material previously from a mixing element in the Strands of material have been divided. The passages can be recesses or Eruptions of the mixing elements. The passages are preferably through an angular offset of mutually facing end and beginning edges following mixing elements and / or by an axial distance between successive Mixing elements reached. Through the mixing elements are through the static mixer pressed material components repeatedly divided into strands of material and again merged and thereby mixed.
  • the invention has for its object a static mixer of the above explained type to develop so that a press-through force is reduced and a Mixing is improved.
  • the Static mixer according to the invention with the features of claim 1 Mixing elements with different pitches.
  • the different sizes Gradients cause different flow rates through the static mixer pressed material components, which improves mixing.
  • homogeneous mixing of material components can be achieved achieve different viscosities.
  • Mixing elements with a larger and a smaller pitch preferably change each other.
  • a further improvement in the mixing of the material components is achieved in that mixing elements with different slope directions (right-handed or left-handed) are provided by the static mixer Pressed material components give a right or left twist.
  • the mixing elements arranged one behind the other alternate a different slope direction. This will precede the mixing element divided strands of material necessarily lead into each other and it will be a good one Mixing achieved.
  • An embodiment of the invention provides that mutually facing start and End edges of consecutive mixing elements are angularly offset from one another. A reduction in the pressing force of the material components through the Static mixer and good mixing is achieved by optimizing the geometric ratios of the mixing elements reached.
  • An embodiment of the The invention provides that mixing elements with a small increase in the longitudinal direction of the Static mixers are shorter than mixing elements with a large slope. The mixing elements with a small pitch give the pressed-through material components a larger one Swirl as the mixing elements with a large slope. This allows a reduction the pressing force.
  • mixing elements with a small slope have a length of about 0.5 times a cross or diameter of the passage of the Static mixer corresponds. It has also proven to be favorable if the Mixing elements with a large slope have a length that is approximately 0.9 to 1.0 times of the cross or diameter of the passage channel of the static mixer equivalent.
  • a mixing element has an angle of rotation of about 180 °.
  • twist angle is meant the angle around which a mixing element is twisted around itself in its longitudinal direction. With a twist angle of 180 ° are the beginning and end of the mixing element parallel to each other.
  • the mixing elements with a small and a large slope can have the same angle of rotation.
  • the static mixer 10 has an injection cannula 12 which a forms the tubular housing of the static mixer 10.
  • An interior of the injection cannula 12 forms a passage channel 14 to be mixed by pressing Material components.
  • the injection cannula 12 has at a rear end Internal thread 15 for screwing on a cartridge, not shown, or the like.
  • Containers from which the material components to be mixed can be pressed out and through the injection cannula 12 can be pressed through.
  • Injection cannula 12 can be designed conically.
  • Embodiment of the invention is the axial length of the mixing elements 16 with small pitch approximately 0.5 times a diameter of the passage 14, the axial length of the mixing elements 18 with a large slope is approximately 0.9 to 1.0 times the diameter of the passage 14.
  • Both the mixing elements 16 with A small slope and the mixing elements 18 with a large slope have one Angle of rotation over its axial length of about 180 °, so it is a rear end of the injection cannula 12 or the internal thread 15
  • Initial edge 20 approximately parallel to a front end of the injection cannula 12 facing end edge 22 of each mixing element 16, 18.
  • facing each other end and Initial edges 20, 22 of successive mixing elements 16, 18 are approximately aligned at right angles to each other, so they have an angular offset of approx. 90 ° on.
  • Due to the intersecting arrangement of the starting and End edges 20, 22 of mixing elements 16, 18 arranged one behind the other are passages 24 formed between the mixing elements 16, 18.
  • the mixing elements 16, 18 are manufactured in one piece with one another, for example by spreading plastic.
  • the cartridge contains two components separately from one another, for example a binder and a hardener of a 2-component synthetic resin mortar.
  • the two components are pasty and can have different viscosities.
  • the two components are together and in a predetermined volume ratio to each other from the Cartridge pressed out. You can also have more than two material components through the Static mixer 10 according to the invention pressed through and mixed together become.
  • the material components are on the initial edges 20 of the mixing elements 16, 18 divided into two strands of material and on the passages 24 between the end and start edges 22 in a row arranged mixing elements 16, 18 merged again. Because the mixing elements 16, 18 are alternately right-handed and left-handed, one is pressed through Strands of material forced by the screw shape of the mixing elements 16, 18 Swirl at the transition from a mixing element 16, 18 to the subsequent mixing element 18, 16, that is to say in the area of the passages 24 between the mixing elements 16, 18, vice versa. The previously divided material strands are when merging brought together and thereby mixed together.
  • the gradient of the mixing elements 16, 18 changes the flow rate of the Strands of material and the material components when pressed through the static mixer according to the invention 10.
  • the flow rate increases and decreases alternately repeated several times over the length of the static mixer 10. This causes thorough mixing of the material components.

Abstract

The static mixer (10) contains screw-like mixing sections (16, 18) of differing pitch. Preferred Features: The mixing sections form a sequence alternating between greater and lesser pitch. Their pitches differ. The mixing sections differ in their sense of rotation. The initial edge of one section, is offset at an angle with respect to the terminal edge of the preceding section. Mixing sections with smaller pitch, are shorter than those with greater pitch, measured along the length of the channel (14). The sections of smaller pitch, have a length about 0.5 times the channel diameter. Those with greater pitch have a length of 0.9-1 times the channel diameter. A mixing section has an angle of rotation of about 180 degrees .

Description

Die Erfindung betrifft einen Statikmischer zum Mischen mehrerer, insbesondere pastöser Materialkomponenten, mit den Merkmalen des Oberbegriffs des Anspruchs 1. Der Statikmischer ist insbesondere zum Mischen eines Härters und eines Binders eines Kunstharzmörtels vorgesehen. Es können grundsätzlich auch mehr als zwei Materialkomponenten gemischt werden. Die Materialkomponenten werden bspw. aus einer Kartusche aus- und durch den Statikmischer durchgepresst.The invention relates to a static mixer for mixing several, in particular pasty material components, with the features of the preamble of claim 1. The static mixer is one for mixing a hardener and a binder Resin mortar provided. In principle, more than two can be used Material components are mixed. The material components are made, for example a cartridge and pressed through the static mixer.

Derartige Statikmischer sind an sich bekannt. Sie weisen ein Rohr als Gehäuse auf, das einen Durchlasskanal bildet. In dem Rohr bzw. Durchlasskanal sind schneckenförmige Mischelemente hintereinander angeordnet. Die Mischelemente können auch als Axialabschnitte eines einzigen, durchgehenden Mischelements verstanden werden. Innerhalb der Mischelemente und/oder zwischen diesen bestehen Durchlässe zum Zusammenführen von Materialsträngen, die zuvor von einem Mischelement in die Materialstränge geteilt worden sind. Die Durchlässe können Ausnehmungen oder Ausbrechungen der Mischelemente sein. Vorzugsweise werden die Durchlässe durch einen Winkelversatz einander zugewandter End- und Anfangsränder aufeinander folgender Mischelemente und/oder durch einen Axialabstand aufeinander folgender Mischelemente erreicht. Durch die Mischelemente werden durch den Statikmischer durchgepresste Materialkomponenten wiederholt in Materialstränge geteilt und wieder zusammengeführt und dadurch vermischt.Static mixers of this type are known per se. They have a tube as a housing that forms a passageway. In the tube or passage channel are helical Mixing elements arranged one behind the other. The mixing elements can also be used as Axial sections of a single, continuous mixing element can be understood. There are passages to the inside of the mixing elements and / or between them Merging strands of material previously from a mixing element in the Strands of material have been divided. The passages can be recesses or Eruptions of the mixing elements. The passages are preferably through an angular offset of mutually facing end and beginning edges following mixing elements and / or by an axial distance between successive Mixing elements reached. Through the mixing elements are through the static mixer pressed material components repeatedly divided into strands of material and again merged and thereby mixed.

Der Erfindung liegt die Aufgabe zugrunde, einen Statikmischer der vorstehend erläuterten Art so weiter zu entwickeln, dass eine Durchpresskraft verringert und eine Durchmischung verbessert wird.The invention has for its object a static mixer of the above explained type to develop so that a press-through force is reduced and a Mixing is improved.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Der erfindungsgemäße Statikmischer mit den Merkmalen des Anspruchs 1 weist Mischelemente mit unterschiedlich großen Steigungen auf. Die unterschiedlich großen Steigungen bedingen unterschiedliche Fließgeschwindigkeiten durch den Statikmischer durchgepresster Materialkomponenten, wodurch eine Durchmischung verbessert wird. Insbesondere lässt sich ein homogenes Durchmischen von Materialkomponenten mit unterschiedlichen Viskositäten erreichen.This object is achieved by the features of claim 1. The Static mixer according to the invention with the features of claim 1 Mixing elements with different pitches. The different sizes Gradients cause different flow rates through the static mixer pressed material components, which improves mixing. In particular, homogeneous mixing of material components can be achieved achieve different viscosities.

Vorzugsweise wechseln Mischelemente mit größerer und mit kleinerer Steigung einander ab. Eine weitere Verbesserung der Durchmischung der Materialkomponenten wird dadurch erreicht, dass Mischelemente mit unterschiedlicher Steigungsrichtung (rechts- oder linksgängig) vorgesehen werden, die den durch den Statikmischer durchgepressten Materialkomponenten einen Rechts- bzw. Linksdrall verleihen. Vorzugsweise weisen die hintereinander angeordneten Mischelemente abwechselnd eine unterschiedliche Steigungsrichtung auf. Dadurch werden vom Mischelement zuvor geteilte Materialstränge zwingend ineinander geführt und es wird eine gute Durchmischung erreicht.Mixing elements with a larger and a smaller pitch preferably change each other. A further improvement in the mixing of the material components is achieved in that mixing elements with different slope directions (right-handed or left-handed) are provided by the static mixer Pressed material components give a right or left twist. Preferably, the mixing elements arranged one behind the other alternate a different slope direction. This will precede the mixing element divided strands of material necessarily lead into each other and it will be a good one Mixing achieved.

Eine Ausgestaltung der Erfindung sieht vor, dass einander zugewandte Anfangs- und Endränder hintereinander angeordneter Mischelemente zueinander winkelversetzt sind. Eine Verringerung der Durchpresskraft der Materialkomponenten durch den Statikmischer und eine gute Durchmischung wird durch eine Optimierung der geometrischen Verhältnisse der Mischelemente erreicht. Eine Ausgestaltung der Erfindung sieht vor, dass Mischelemente mit kleiner Steigerung in Längsrichtung des Statikmischer kürzer als Mischelemente mit großer Steigung sind. Die Mischelemente mit kleiner Steigung geben den durchgepressten Materialkomponenten einen größeren Drall als die Mischelemente mit großer Steigung. Dadurch lässt sich eine Verringerung der Durchpresskraft erreichen. Als günstig in Bezug auf eine geringe Durchpresskraft bei guter Durchmischung der Materialkomponenten hat sich eine Ausgestaltung erwiesen, bei der Mischelemente mit kleiner Steigung eine Länge aufweisen, die etwa dem 0,5-fachen eines Quer- bzw. Durchmessers des Durchlasskanals des Statikmischers entspricht. Ebenso hat es sich als günstig erwiesen, wenn die Mischelemente mit großer Steigung eine Länge aufweisen, die etwa dem 0,9 bis 1,0-fachen des Quer- bzw. Durchmessers des Durchlasskanals des Statikmischers entspricht. An embodiment of the invention provides that mutually facing start and End edges of consecutive mixing elements are angularly offset from one another. A reduction in the pressing force of the material components through the Static mixer and good mixing is achieved by optimizing the geometric ratios of the mixing elements reached. An embodiment of the The invention provides that mixing elements with a small increase in the longitudinal direction of the Static mixers are shorter than mixing elements with a large slope. The mixing elements with a small pitch give the pressed-through material components a larger one Swirl as the mixing elements with a large slope. This allows a reduction the pressing force. As favorable in terms of a low pressing force with thorough mixing of the material components, there is an embodiment proven, in which mixing elements with a small slope have a length of about 0.5 times a cross or diameter of the passage of the Static mixer corresponds. It has also proven to be favorable if the Mixing elements with a large slope have a length that is approximately 0.9 to 1.0 times of the cross or diameter of the passage channel of the static mixer equivalent.

Bei einer Ausgestaltung der Erfindung weist ein Mischelement einen Verdrehwinkel von ungefähr 180° auf. Mit Verdrehwinkel ist der Winkel gemeint, um den ein Mischelement in seiner Längsrichtung um sich selbst verdreht ist. Bei einem Verdrehwinkel von 180° sind Anfangs- und Endrand des Mischelements parallel zueinander. Die Mischelemente mit kleiner und mit großer Steigung können den gleichen Verdrehwinkel aufweisen.In one embodiment of the invention, a mixing element has an angle of rotation of about 180 °. By twist angle is meant the angle around which a mixing element is twisted around itself in its longitudinal direction. With a twist angle of 180 ° are the beginning and end of the mixing element parallel to each other. The mixing elements with a small and a large slope can have the same angle of rotation.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Die einzige Figur zeigt einen erfindungsgemäßen Statikmischer.The invention is illustrated below with the aid of one in the drawing Embodiment explained in more detail. The only figure shows one according to the invention Static mixer.

Der erfindungsgemäße Statikmischer 10 weist eine Injektionskanüle 12 auf, die ein rohrförmiges Gehäuse des Statikmischers 10 bildet. Ein Innenraum der Injektionskanüle 12 bildet einen Durchlasskanal 14 zum Durchpressen zu mischender Materialkomponenten. An einem hinteren Ende weist die Injektionskanüle 12 ein Innengewinde 15 zum Aufschrauben auf eine nicht dargestellte Kartusche oder dgl. Behälter auf, aus der die zu mischenden Materialkomponenten auspressbar und durch die Injektionskanüle 12 durchpressbar sind. Zum Entformen aus einem Spritzgießwerkzeug oder dgl. und/oder zum Einlegen von Mischelementen kann die Injektionskanüle 12 konisch ausgeführt sein.The static mixer 10 according to the invention has an injection cannula 12 which a forms the tubular housing of the static mixer 10. An interior of the injection cannula 12 forms a passage channel 14 to be mixed by pressing Material components. The injection cannula 12 has at a rear end Internal thread 15 for screwing on a cartridge, not shown, or the like. Containers from which the material components to be mixed can be pressed out and through the injection cannula 12 can be pressed through. For demolding from one Injection mold or the like. And / or for inserting mixing elements Injection cannula 12 can be designed conically.

Im Durchlasskanal 14 der Injektionskanüle 12 liegen eine Anzahl schneckenförmiger Mischelemente 16, 18 ein, die axial hintereinander angeordnet sind. Dabei wechseln Mischelemente 16 mit kleiner Steigung und Mischelemente 18 mit großer Steigung einander ab. Die Richtung der Steigung der Mischelemente 16 mit kleiner Steigung ist der Richtung der Steigung der Mischelemente 18 mit großer Steigung entgegengerichtet, es sind die Mischelemente 16 mit kleiner Steigung rechtsgängig und die Mischelemente 18 mit großer Steigung linksgängig oder umgekehrt. Eine axiale Länge der Mischelemente 16 mit kleiner Steigung ist kürzer als eine axiale Länge der Mischelemente 18 mit großer Steigung. Im dargestellten und beschrieben Ausführungsbeispiel der Erfindung beträgt die axiale Länge der Mischelemente 16 mit kleiner Steigung ungefähr das 0,5-fache eines Durchmessers des Durchlasskanals 14, die axiale Länge der Mischelemente 18 mit großer Steigung beträgt ungefähr das 0,9 bis 1,0-fache des Durchmessers des Durchlasskanals 14. Sowohl die Mischelemente 16 mit kleiner Steigung als auch die Mischelemente 18 mit großer Steigung weisen einen Verdrehwinkel über ihre axiale Länge von ungefähr 180° auf, es ist also ein dem hinteren Ende der Injektionskanüle 12 bzw. dem Innengewinde 15 zugewandter Anfangsrand 20 in etwa parallel zu einem einem vorderen Ende der Injektionskanüle 12 zugewandten Endrand 22 jedes Mischelementes 16, 18. Einander zugewandte End- und Anfangsränder 20, 22 aufeinander folgender Mischelemente 16, 18 sind in etwa rechtwinklig zueinander ausgerichtet, sie weisen also einen Winkelversatz von ca. 90° auf. Durch die einander kreuzende Anordnung der einander zugewandten Anfangs- und Endränder 20, 22 hintereinander angeordneter Mischelemente 16, 18 sind Durchlässe 24 zwischen den Mischelementen 16, 18 gebildet. Die Mischelemente 16, 18 sind einstückig miteinander bspw. durch Spreizgießen aus Kunststoff hergestellt.There are a number of screw-shaped ones in the passage channel 14 of the injection cannula 12 Mixing elements 16, 18, which are arranged axially one behind the other. Change in the process Mixing elements 16 with a small pitch and mixing elements 18 with a large pitch each other. The direction of the slope of the mixing elements 16 with a small slope is the direction of the slope of the mixing elements 18 with a large slope opposite, there are the mixing elements 16 with a small slope right-hand and the mixing elements 18 with a large slope left-handed or vice versa. An axial Length of the mixing elements 16 with a small slope is shorter than an axial length of the Mixing elements 18 with a large slope. In the illustrated and described Embodiment of the invention is the axial length of the mixing elements 16 with small pitch approximately 0.5 times a diameter of the passage 14, the axial length of the mixing elements 18 with a large slope is approximately 0.9 to 1.0 times the diameter of the passage 14. Both the mixing elements 16 with A small slope and the mixing elements 18 with a large slope have one Angle of rotation over its axial length of about 180 °, so it is a rear end of the injection cannula 12 or the internal thread 15 Initial edge 20 approximately parallel to a front end of the injection cannula 12 facing end edge 22 of each mixing element 16, 18. facing each other end and Initial edges 20, 22 of successive mixing elements 16, 18 are approximately aligned at right angles to each other, so they have an angular offset of approx. 90 ° on. Due to the intersecting arrangement of the starting and End edges 20, 22 of mixing elements 16, 18 arranged one behind the other are passages 24 formed between the mixing elements 16, 18. The mixing elements 16, 18 are manufactured in one piece with one another, for example by spreading plastic.

Die Kartusche enthält getrennt voneinander zwei Komponenten, bspw. einen Binder und einen Härter eines 2-Komponenten-Kunstharzmörtels. Die beiden Komponenten sind pastös und können unterschiedliche Viskositäten aufweisen. Die beiden Komponenten werden gemeinsam und in einem vorgegebenen Volumenverhältnis zueinander aus der Kartusche ausgepresst. Es können auch mehr als zwei Materialkomponenten durch den erfindungsgemäßen Statikmischer 10 durchgepresst und dabei miteinander vermischt werden.The cartridge contains two components separately from one another, for example a binder and a hardener of a 2-component synthetic resin mortar. The two components are pasty and can have different viscosities. The two components are together and in a predetermined volume ratio to each other from the Cartridge pressed out. You can also have more than two material components through the Static mixer 10 according to the invention pressed through and mixed together become.

Beim Durchpressen durch den Statikmischer 10 werden die Materialkomponenten an den Anfangsrändern 20 der Mischelemente 16, 18 in zwei Materialstränge geteilt und an den Durchlässen 24 zwischen den End- und Anfangsrändern 22 hintereinander angeordneter Mischelemente 16, 18 wieder zusammengeführt. Da die Mischelemente 16, 18 abwechselnd rechts- und linksgängig sind, wird ein den durchgepressten Materialsträngen durch die Schneckenform der Mischelemente 16, 18 aufgezwungener Drall am Übergang von einem Mischelement 16, 18 zum nachfolgenden Mischelement 18, 16, also im Bereich der Durchlässe 24 zwischen den Mischelementen 16, 18, umgekehrt. Die zuvor geteilten Materialstränge werden beim Zusammenführen ineinandergeführt und dadurch miteinander vermischt. Durch die unterschiedliche Steigung der Mischelemente 16, 18 ändert sich die Fließgeschwindigkeit der Materialstränge und der Materialkomponenten beim Durchpressen durch den erfindungsgemäßen Statikmischer 10. Die Fließgeschwindigkeit erhöht und verringert sich abwechselnd mehrfach wiederholt über die Länge des Statikmischers 10. Dies bewirkt eine gute Durchmischung der Materialkomponenten.When pressing through the static mixer 10, the material components are on the initial edges 20 of the mixing elements 16, 18 divided into two strands of material and on the passages 24 between the end and start edges 22 in a row arranged mixing elements 16, 18 merged again. Because the mixing elements 16, 18 are alternately right-handed and left-handed, one is pressed through Strands of material forced by the screw shape of the mixing elements 16, 18 Swirl at the transition from a mixing element 16, 18 to the subsequent mixing element 18, 16, that is to say in the area of the passages 24 between the mixing elements 16, 18, vice versa. The previously divided material strands are when merging brought together and thereby mixed together. Because of the different The gradient of the mixing elements 16, 18 changes the flow rate of the Strands of material and the material components when pressed through the static mixer according to the invention 10. The flow rate increases and decreases alternately repeated several times over the length of the static mixer 10. This causes thorough mixing of the material components.

Claims (9)

Statikmischer zum Mischen mehrerer, insbesondere pastöser Materialkomponenten, mit schneckenförmigen Mischelementen, die hintereinander in einem Durchlasskanal angeordnet sind, und mit Durchlässen zum Zusammenführen von Materialsträngen, die zuvor von einem Mischelement in die Materialstränge geteilt worden sind, dadurch gekennzeichnet, dass der Statikmischer (10) Mischelemente (16, 18) mit unterschiedlich großen Steigungen aufweist.Static mixer for mixing several, in particular pasty, material components, with screw-shaped mixing elements which are arranged one behind the other in a passage channel, and with passages for bringing together material strands which have previously been divided into the material strands by a mixing element, characterized in that the static mixer (10) Mixing elements (16, 18) with slopes of different sizes. Statikmischer nach Anspruch 1, dadurch gekennzeichnet, dass die hintereinander angeordneten Mischelemente (16, 18) abwechselnd eine größere und eine kleinere Steigung aufweisen.Static mixer according to claim 1, characterized in that the mixing elements (16, 18) arranged one behind the other alternately have a larger and a smaller pitch. Statikmischer nach Anspruch 1, dadurch gekennzeichnet, dass der Statikmischer (10) Mischelemente (16, 18) mit unterschiedlicher Steigungsrichtung aufweist.Static mixer according to claim 1, characterized in that the static mixer (10) has mixing elements (16, 18) with different gradient directions. Statikmischer nach Anspruch 3, dadurch gekennzeichnet, dass die hintereinander angeordneten Mischelemente (16, 18) abwechselnd eine unterschiedliche Steigungsrichtung aufweisen.Static mixer according to claim 3, characterized in that the mixing elements (16, 18) arranged one behind the other alternately have a different gradient direction. Statikmischer nach Anspruch 1, dadurch gekennzeichnet, dass ein Anfangsrand (20) eines nachfolgenden Mischelements (16, 18) winkelversetzt zu einem Endrand (22) eines vorrangehenden Mischelements (18, 20) ist.Static mixer according to claim 1, characterized in that an initial edge (20) of a subsequent mixing element (16, 18) is angularly offset from an end edge (22) of a preceding mixing element (18, 20). Statikmischer nach Anspruch 1, dadurch gekennzeichnet, dass Mischelemente (16) mit kleinerer Steigung in Längsrichtung des Durchlasskanals (14) kürzer als Mischelemente (18) mit größerer Steigung sind. Static mixer according to claim 1, characterized in that mixing elements (16) with a smaller slope in the longitudinal direction of the passage channel (14) are shorter than mixing elements (18) with a larger slope. Statikmischer nach Anspruch 6, dadurch gekennzeichnet, dass Mischelemente (16) mit kleinerer Steigung eine Länge von etwa dem 0,5-fachen eines Quermessers des Durchlasskanals (14) aufweisen.Static mixer according to claim 6, characterized in that mixing elements (16) with a smaller pitch have a length of approximately 0.5 times a transverse diameter of the passage channel (14). Statikmischer nach Anspruch 6, dadurch gekennzeichnet, dass Mischelemente (18) mit größerer Steigung eine Länge von etwa dem 0,9 bis 1,0-fachen eines Quermessers des Durchlasskanals (14) aufweisen.Static mixer according to claim 6, characterized in that mixing elements (18) with a larger pitch have a length of approximately 0.9 to 1.0 times a transverse knife of the passage channel (14). Statikmischer nach Anspruch 1, dadurch gekennzeichnet, dass ein Mischelement (16, 18) einen Verdrehwinkel von ungefähr 180° aufweist.Static mixer according to claim 1, characterized in that a mixing element (16, 18) has an angle of rotation of approximately 180 °.
EP02000849A 2001-03-07 2002-01-15 Static mixer Expired - Lifetime EP1238698B1 (en)

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DE20103983U DE20103983U1 (en) 2001-03-07 2001-03-07 static mixer
DE20103983U 2001-03-07

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EP1238698B1 EP1238698B1 (en) 2004-12-29

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AT (1) ATE285837T1 (en)
CZ (1) CZ2002853A3 (en)
DE (2) DE20103983U1 (en)
DK (1) DK1238698T3 (en)
ES (1) ES2233720T3 (en)
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Cited By (1)

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EP1670409A1 (en) * 2003-09-30 2006-06-21 Coloplast A/S A wound care device

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CZ302452B6 (en) * 2004-04-14 2011-05-25 Tvrdík@Jaroslav Static spiral mixer
DE102008017104A1 (en) 2008-04-02 2009-10-29 Henkel Ag & Co. Kgaa Dispenser for stocking and releasing multi-component hair treatment unit, has housing with multiple chambers for respective components, where chambers are separated from each other

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PL352647A1 (en) 2002-09-09
EP1238698B1 (en) 2004-12-29
DE20103983U1 (en) 2002-07-11
CZ2002853A3 (en) 2002-10-16
HUP0200380A3 (en) 2003-04-28
DE50201865D1 (en) 2005-02-03
ATE285837T1 (en) 2005-01-15
HUP0200380A2 (en) 2003-01-28
HU222906B1 (en) 2003-12-29
ES2233720T3 (en) 2005-06-16
DK1238698T3 (en) 2005-02-07
HU0200380D0 (en) 2002-03-28

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